Our overall impression was that we had gone through a fascinating and rather rigorous academic exercise.

After lunch came the day's most rigorous exercise, 40 minutes of treadmill walking.

Today's modified program of stocking carbohydrates calls for rigorous exercise seven days before a race.

They needed rigorous daily exercise or they could become destructive.

With minimal, light maintenance, this gym should supply years of rigorous exercise.

The staff will also work with students' families to help them support the rigorous academic exercises.

The days were still warm, too warm for such rigorous exercise.

Dr. Brown's research studied the effects of rigorous exercise on women.

Such drawings are the kind of rigorous exercise seldom undertaken today.

He maintains a rigorous exercise and nutrition program to keep his 10-year-old diabetes at bay.